Donald Trump's running mate should fully share his policy views and that someone is not Marco Rubio.

In an interview with CNN on Tuesday, Rubio again made it clear that he has no interest in the No. 2 spot on the Republican ticket this November, and that he's not sure yet whether he'll even attend the party convention in July. He hasn't thought much about it.

Rubio said he has been busy reentering the Senate after an 11-month campaign, and said he had not spoken with the Trump campaign about running with the real estate mogul. And that's fine with him.

On Monday, Rubio also doused the prospect of sharing the ticket since dropping out of the race, saying on his Facebook page that his "previously stated reservations about his campaign and concerns with many of his policies remain unchanged."

Last week, CNBC asked Trump if any of his 16 original rivals for the nomination could be his VP choice. “I would say probably a 40 percent chance within the group. I’ve gotten to be friends with a lot of those people,” the business mogul said.

Though, Rubio did say that it was smart that Trump planned to meet Republican leaders in Washington on Thursday. However, he doesn't know if there is a "roadmap" for him to ultimately win support from reluctant lawmakers and other party heavyweights turned off by his blunt and unpredictable style, and his startling policy pronouncements.